The sesquisquare aspect (135 degrees) is a major indicator of unbalance in
one's life, either by transit, progression or natally. This aspect is also
called the sesquare or the older name is sesquiquadrate. It can represent
either a physical challenge such as a genetic imbalance causing a birth defect,
or a it may represent a poor or untenable choice of behaviors. If we consider
an aspect as starting from the ascendant, the indicator of the totality of
the physical body, then the sesquisquare drops you off in the middle of the
fifth house, past the trine aspect, but not far enough to be readily available
to the changeable energy or immediacy of the quincunx.

The sesquisquare often represents behaviors that are strongly stimulated

by subconscious longings, or misguided attempts to make life turn out pleasantly
by specific actions. The goal is far different from the result, bringing
not what the owner intended because the sesquisquare aspect is irritating,
uncomfortable, unhappy, maladjusted, or sorrowful in its result.

There is much ignorance of this aspect, and I am at a loss as to why it is
not taught early in one's studies. I think it has to do with the unconsciousness
of the choices represented by the aspect. To change a sesquisquare behavior
requires a breakthrough in consciousness , or an intervention, such as
periodically take place under the influence of a transformational transit
by quincunx or the planet Uranus, Neptune or Pluto.

The sesquisquare is a trine plus 15 degrees, incorporating an automatic or
locked in behavior or energy force with a small shock. The 15 degree aspect
must be in the harmonic group that includes the quincunx, and the semi-sextile,
both capable of representing upset of expected patterns.

Another way to think of it is a square (90) plus a semi-square (45), symbolizing
a determination to go forward into a behavior with a great deal of energy,
without a clear understanding of the actual results of the action. This aspect
definitely can represent poor choices made by the individual, unusual or
faulty genetic structure, or show a potential outcome of trauma. This results
in a misalignment of energy patterns, possibly blockages, or increased energy
in a direction chosen through habit.

Usually the antidote, if there is one is contained in either the next major
aspect, the quincunx, and the awareness of the difficulty of the sesquare
is revealed in the aspect in the middle of those two. That aspect is the
144 degree aspect, or biquintile, which has a lot to do with spiritual growth,
and that is after all, a mini-enlightenment or "light bulb" like in the comic
strips.